Automatic stop-valve.



No. 875,&47. PATENTED DE. 31 1907. J. G. HARRIS & T. .P. MATTIMORE;

AUTOMATIC STOP VALVE.

APPLICATION I'ILBD JULY13.-907.

All/

-INVENTOR .MA/ m WITNESSES: e-.c. %2% W 6 2% UNITED sTATns -TENT em 'JosEPH GHA'RRIS AND TIMOTHY P. MATTIMOR E, OF TOLDO, OHIO.

AUTOMATIC STOP-VALVE.

Patented Dec; 31, 1907.

Application filed July 13. 1907- serial No. 383.700.

' `To` all 'whom'it may concem v vision of a sim i paratus embodyin shape, but ma ered .by a diaphragm Be it known that we, JosEPH G. HARRIS and TIMOTHY P. MATTIMORE, citizens of the United States and residents of Toledo, in the county of Lucas and State of Ohio, have invented a certain new 'and useful Automatic Stop-Valve; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which'it appertains to make and use. the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Our invention relatcs to fiuid-pressure valves, and particularly to sto or cut-ofl' valves for use in connection witii natural or other gas lines for automatically closing the line when the flow of gas therein ceases, thus preventing the escape of gas from open jets and burners after the flow has again started. -The object of our invention is the prole and highly efficient device of this kind, W ich is of im roved and sinplified Construction and o Viates the obfollowing specification, and illustrated in the accompanying drawings, in which,-

Figure 1 is a horizontal section of the apthe features of our invention taken on t e .dotted line x x in Fig.

2. Fi 2 is a central vertical section thereof, with the valve in open position, and Fig.

i 3 is a similar view thereof with-the valve closed. Referring to the drawings, 1 designates I the box or casing member of our invention,

which is shown as being rectangular in be of any other suitable shape, and as aving a removable cover 2 bolted or otherwise suitably Secured thereto. The cover 2 is provided'at one end thereof -with an opening 3, which is primarily cov- 4 that is held to the cover and has its outward movement limited by a metallic lid 5. This lid is bolted to the cover 2 and has its inner surface concaved to "i permit the diaphragm to have a limited outward movement when pressure is applied to the inner side thereof, as shown in ig. 2.

The box or incasing-member 1 is provided at opposite sides thereof with the mlet and outlet 'openngs 6 and 7, respectively, the

` erably of leather,

former of which opens into a valve-chamber 8 formed within the box. This chamber is of less heightlthan the box 1 and has its top rovided with an opening 9 leading 'into the nterior of the box 1, which opening is intended to be closed by a valve 10 seating against' the'inner margin thereof. The valve 10 has its stem 11 projecting outwardly through the opening 9 and attached to one arm of a horizontally-disposed lever 12, which lever is fulcrumed to the inner end of'a shaft 13. The other arm of the lever 12, which is. rojected beneath the diaphragm 4, is provi ed at its end' with a weight 14 and is connected by a link 15 to the center of said diaphragm, said' link being of suitable length to cause the valve to stand open when the diaphragm is completely raised, as shown in Fig. 2. The shaft 13 rojects through a stuifing-box 16 in one si e of the box or member 1 and has its outer endprovided With a suitable head or finger-grip 17 to facilitate a turning thereoi. The sleeve 18 forming a part of the stuffing-box is preferably projected a distance within the box or member 1. and has its inner end closed around the shaft 13 by a Washer or smiling-member 19. This Washer is preffelt or other suitable noncorrosive material, as it is found that where metal is used the action of the gas thereon will cause' it to corrode and become locked to the sleeve and shaft, thus preventing a .relative turning thereof. It is apparent from the above that the shaft 13 is manually turned to eilect an opening of the valve, and is maintained 'in such position by the outward ressure against the diaphragm 4 of the v gas a mitted torthe ;box or member 1 from the valve-chamber 8', thus counteracting the action of the weight at the end of the lever 12. Should the flow of gas through the box 1 be stopped the outward pressure on the 1. In combinaton, a casing having an in- .ternal valve-chambeprovided in its top with a port opening into e chamber formed by the casing, said casing havin an inlet o ening leading into the valve-c amber an an outlet opening leading from the other chamber, `a valve intended to close the outlet port in the valve-chamber and having its stem rojected outwardly therethrough, a lever Fulcrumed within 'the casing and having an end Weighted and its other end attached to the valve stern, a dia hragm disposed above the Weighted end of t e lever and connected thereto Whereby an outward pressure on the dia hragm effects a raisng of the Weighted d of the lever and an opening of the valve,

en and a shaft carrying the lever and having its outer end projected through the casing to adapt a turnng of the shaft to oscillate the lever.

2. In combination, a box-like member having an outlet port, a removable cover provided With an opening, a lid for said opening having its inner surface concaved, a diaphragm held' 'across the opening by the lid and having its outward movement -limited by the lid, a valve-chamber in one end of said member having inlet and outlet openings, the outlet opening being in its top, an internal va'lve. for closing said outlet opening, a lever fulcrumed within the member and having one end Weighted and connected to the diaphragm and its other end attached to the valve-stem, and means operativefrom Without the member for manually turning the lever, substantially as described.

In testimony Whereof We have hereunto signed our names to this specification in the presence of-tWo subscribing witnesses.

JOSEPH G. HARRIS. TIMOTHY P. MATTIMORE.

Witnesses: C. W. OWEN,

A. REISER.

A I I 

